Websites:

"About the Yakuza." Let's Play . N.p., n.d. Web. 13 June 2011. <lparchive.org/Yakuza/Info/ >.
Bruno, Anthony. "The Yakuza, the Japanese Mafia." Trutv. N.p., 9 Feb. 2011. Web. 13 June 2011. <http://www.trutv.com/library/crime/gangsters_outlaws/gang/yakuza/1.html>.
Kim, Dae-gun. "Korean Pride: Gangs and the Korean Community." Stanford.edu. N.p., 10 Apr. 1998. Web. 11 June 2011. <www.stanford.edu/group/reflections/Winter1998/Nonfiction/KoreanPride.html >.
McGarvey, Brendan. "Silent Threat ." Citypaper. N.p., 22 Aug. 2002. Web. 11 June 2011. <archives.citypaper.net/articles/2002-08-22/cb2.shtml >.
"TRIADS AND ORGANIZED CRIME IN CHINA ." Facts and Details. N.p., n.d. Web. 13 June 2011. <factsanddetails.com/china.php?itemid=300&catid=8&subcatid=50 >.

Images:

"Cosa Nostra." Libero. 13 Jun 2011. <http://digilander.libero.it/inmemoria/cosa_nostra.htm>
"Kkangpae." Tistory. 13 Jun 2011. <http://themovies.tistory.com/269>
"Triads." The Chosunilbo. 13 Jun 2011. <http://english.chosun.com/site/data/html_dir/2006/12/19/2006121961014.html>
"Yakuza hierarchy." Wikimedia. 13 Jun 2011. <http://upload.wikimedia.org/wikipedia/commons/5/52/Yakuza_hierarchy.png>
"Triad structure." Wikimedia. 13 Jun 2011. <http://upload.wikimedia.org/wikipedia/commons/6/65/Triad_structure.svg>